54653985 has 12 divisors (see below), whose sum is σ = 94733652. Its totient is φ = 29148768.

The previous prime is 54653983. The next prime is 54653993. The reversal of 54653985 is 58935645.

It can be written as a sum of positive squares in 2 ways, for example, as 20466576 + 34187409 = 4524^2 + 5847^2 .

It is not a de Polignac number, because 54653985 - 2¹ = 54653983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1214533 = 54653985 / (5 + 4 + 6 + 5 + 3 + 9 + 8 + 5).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 54653985.

It is not an unprimeable number, because it can be changed into a prime (54653981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 607222 + ... + 607311.

It is an arithmetic number, because the mean of its divisors is an integer number (7894471).

Almost surely, 2^54653985 is an apocalyptic number.

It is an amenable number.

54653985 is a deficient number, since it is larger than the sum of its proper divisors (40079667).

54653985 is a wasteful number, since it uses less digits than its factorization.

54653985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214544 (or 1214541 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 54653985 is about 7392.8333539990. The cubic root of 54653985 is about 379.4960656166.

The spelling of 54653985 in words is "fifty-four million, six hundred fifty-three thousand, nine hundred eighty-five".